#404FC3#404FC3

#404FC3 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.6% C 0.180 H 272.2°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#404FC3
RGB	rgb(64, 79, 195)
HSL	hsl(233, 52%, 51%)
HSV	hsv(233, 67%, 76%)
CMYK	cmyk(67.2%, 59.5%, 0%, 23.5%)
CIE-LAB	lab(38.93, 31.95, -62.51)
CIE-LCH	lch(38.93, 70.20, 297.08°)
OKLab	oklab(48.61% 0.007 -0.1801)
OKLCH	oklch(48.61% 0.18 272.2)
XYZ	xyz(14.7574, 10.6207, 52.8915)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FC3 #C3B440

analogous

#4090C3 #404FC3 #7240C3

triadic

#404FC3 #C3404F #4FC340

tetradic

#404FC3 #C34090 #C3B440 #40C372

square

#404FC3 #C34090 #C3B440 #40C372

split-complementary

#404FC3 #C37240 #90C340

monochromatic

#212968 #2F3B97 #404FC3 #6F7AD2 #9DA5E0

Accessibility & contrast

On white

6.72

#404FC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#404FC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FC3

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FC3	#FFFFFF	#000000	##FFFFFF
##404FC3	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C7

Deuteranopia (green-blind)

#0056C1

Tritanopia (blue-blind)

#006C81

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #404fc3;
/* rgb */ color: rgb(64, 79, 195);
/* oklch */ color: oklch(48.6% 0.180 272.2);

Tailwind

colors: {
  custom: {
    50: '#8480d6',
    500: '#404fc3',
    950: '#000000',
  },
}

SCSS

$custom: #404fc3;
$custom-light: #8480d6;
$custom-dark: #000000;

JSON

{
  "hex": "#404fc3",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 195
  },
  "hsl": {
    "h": 233.13,
    "s": 52.191,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48614,
    "c": 0.18024,
    "h": 272.2
  },
  "luminance": 0.10622
}

Semantic roles & 50–950 ramp

primary

#404FC3

secondary

#CCC692

accent

#CB4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #404FC3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →